Lean red meats, including beef, pork and lamb, can play an important part in a healthy balanced diet as they have a high nutrient density. This means that they contain a wide variety of nutrients in a relatively small amount of food.Meat is a major source of protein.
The olfactory epithelium is a specialized epithelial tissue inside the nasal cavity that is involved in smell. In humans, it measures about 9 cm 2 (3 centimeters by 3 centimeters) and lies on the roof of the nasal cavity about 7 cm above and behind the nostrils.
In humans, the olfactory epithelium is located about 7 cm up and into the nose from the nostrils. The Olfactory System. Hair cells are the receptors in the olfactory epithelium that respond to particular chemicals. These cells have small hairs called cilia on one side and an axon on the other side.